Seesaw



Sept. g1 1926.

D. NAGY sEEsAw Filed Sept. 10, 1925 mmm Mmmm

INVLNTOR TTORNEXQK .ANH

P operated,

Patented Sept. 21,1926.

UNITED VSflfeiifES* DAVID' NAGY, or NEW YORK, iv. Y. f l

snnsaw. j

:Application filed September 10, 1925 Serial No. 55,4911

This inventionr'e'lates tol seesaws, and its principal Vobj eet means whereby' a blast of air may be directed against the users while operating the saine.y

Another object is to provide a seesaw with means whereby so may be produced 'whileopelrating the same.

Another'object is to provide afsees'aw with improved" fm'efar'is"Y to prmit horizontal riotation of' its swinging' 'ljbeam jabout its ful-L crurn.

Other objects .and advantages willfliereinafter appear.' f

This' inventiony is lan improvement upon the seesaw shown and describedV in my Patent No. 1,550,040, dated August.18, 1925.

ln the accompanying drawings,-

Fig. 1 shows a general elevation or the seesaw.

Fig. 2 is a cross-sectional elevation, in an enlarged scale, of the device herein used for producing the air blast. Y

Fig. 3 is across-sectional elevation, in an enlarged scale, showing the revolving mechanism for the seesaw beam.

The seesaw 1 is provided with a standard 2 comprising a fixture 3 in which is mounted an adjustable screw4 carrying at its upper end. a fitting 5 on which is fulcrumed the beam 6. From the beam 6 project hangers 7 to which are pivoted, at 8, air cylinders 9 having pistons 10, from which extend rods 11 that are in turn pivoted at 12to brackets 13 secured to the fitting 5. The cylinderheads 14, Fig. 2, are provided with air-inlet valves 15,- and conveying pipes 16 extend from said heads and are joined to T-fittings- 17 in which are mounted air-outlet valves 18. To the fittings 17 are joined rubber tubes 19 which eXten-d'above the beam v6 and carry at their terminals nozzles 20, that are pivotally mounted upon the posts 21 facing the seats.

As the beam 6 reciprocates, therefore, while the seesaw is in use, the pistons 10 are continually reciprocated within the cylinders 9, and thereby draw inthe air through the valves 15 and force same out through the valves 18 and into the tubes 19, in which manner a continuous blast of air is emitted from the'nozzles 20 against the sitters. A suitable whistling device 21L is secured to the mouth of each nozzle 20, which devices produce whistling so'unds as the s'eesaw -is the same serving to amuse the is to provide a seesaw 'with' undjs`, such as whistling",l

users. "A thumb-screw 22 passiiigthroughl'i the pivot 23 of nozzle 2() serves to lregulate and adjust the latter in av vertical plane, `and l, said vpivot is' formed inyafjforlreld'V fitting.24

which is iii turn provided witha shanlrx25l the post 21.

'60." v rotatably mounted. ai fitting 26 secured' toffl i I A'* thumb-screw "27 passes' I horizontal plane. erably provided the underside of the beambi The SCrew-L iS- splllefl by Ineanso a kerway 29 thereof engaginga feather` 30'A carl" ried'byl a flanged journal 31 mounted inv a bearing 32 `secured to the standard-fixture 3, the screw being slidable vertically through the yhole EL of the journal. .Between the flange 33 of journal 31 and the top-face of j bearing 32 is located a bronze gasket 3.4, and

grooves 35 are provided, in said flange and bearing, which are filled with heavily oiled ragsfor the thorough lubrication of the journal Vand bearing surfaces. A nut 36 ior adjusting the Yscrew 4 normally rests upon the flange 33. Threading of the nut 36 vin one direction adjusts the elevation of the beam 6, while turning' of said nut op positely vlowers the setposition of the beam. As the beam is swung and is being simultaneously revolved about the vertical axis of its fulcrum, therefore, the screw 4, nut

36, and journal 31 are rotated therewith, and the set elevation of the beam remains constant and unaffected bythe horizontal revolution ofthe beam. A set-screw 37 threading through the bearing 32 and against the journal 31 locks the latter `and the beam against rotation, if desired, and a set-screw 38 threading into the journal 31 with its cap 39 against the bearing'32 pren vents accidental upward dislocation of the journal. l i

Variations lmay be resorted to within the scope of the invention, and portions of the improvements may be used without others. HavingV thus described my invention, I claim f 1. A seesaw having the combination with a standard, and a beam fulcrumed thereon, of mechanisnifor producing a current of air said mechanism being pivotally joined to said standard and said beam, said mecha- :nism being operated by the motion ot' said beam, and means to convey the air from said mechanism above said beam.

2. A seesavv having the'combination with a standard, and a beam fulcrumed thereon, of mechanism for producing a current of air, said mechanism being pivotally joined to said standard and beam, and said mecha-.

nism being operated by the motion of said beam, to produce an air current above the beam. l

3. A scesaT having the combination With a standard, anda beam fulcrumed thereon,V j ofair'blovving mechanism including acylsaid beam to bloW air, and means to convey the air from said mechanism above the beam. 5.` A seesaw having the combination with a standard, and a beam fulcrumed thereon, of air blowing mechanism including a cylinder, piston, and piston rod, said cylinder being pivotally joined to said beam, said rod being pivotally joined tosaid standard, said'cylinder, pisto-n, and rod being operated by the motion of said beam to blow air, a tube conve-ying the air above saidbeam, and a sound producing ofsaid tube.

device at the upper end 6. A seesaiv Vhaving thecombination with" a standard, and a beam fulcrumed thereon, of means orcmounting said beam on said standard includingv a sleeve, aY screw for elevating said beam splined in said sleeve`,'said sleeve running in a fixed bearing, anda nut for operating said screw bearing against said journal. Y

vIn testimony whereof, I have signed'my name to this specification this 9th day of" September, 1925. V .y

DAVID NAGY. 

